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| author | Florian Westphal <fw@strlen.de> | 2026-04-14 20:13:46 +0300 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2026-04-21 00:27:46 +0300 |
| commit | 6e7066bdb481a87fe88c4fa563e348c03b2d373d (patch) | |
| tree | 66cf5dbdf9d6204506247d4da764780b5c8fd1fa /scripts/checkstack.pl | |
| parent | 2195574dc6d9017d32ac346987e12659f931d932 (diff) | |
| download | linux-6e7066bdb481a87fe88c4fa563e348c03b2d373d.tar.xz | |
netfilter: conntrack: remove sprintf usage
Replace it with scnprintf, the buffer sizes are expected to be large enough
to hold the result, no need for snprintf+overflow check.
Increase buffer size in mangle_content_len() while at it.
BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270
Write of size 1 at addr [..]
vsnprintf+0xea5/0x1270
sprintf+0xb1/0xe0
mangle_content_len+0x1ac/0x280
nf_nat_sdp_session+0x1cc/0x240
process_sdp+0x8f8/0xb80
process_invite_request+0x108/0x2b0
process_sip_msg+0x5da/0xf50
sip_help_tcp+0x45e/0x780
nf_confirm+0x34d/0x990
[..]
Fixes: 9fafcd7b2032 ("[NETFILTER]: nf_conntrack/nf_nat: add SIP helper port")
Reported-by: Yiming Qian <yimingqian591@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'scripts/checkstack.pl')
0 files changed, 0 insertions, 0 deletions